CVE-2016-5095

Integer overflow in the php_escape_html_entities_ex function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from a FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-5094.

CVSS v3 8.6 HIGH
CVSS v2.0 7.5 HIGH

8.6^/10

CVSS v3 : HIGH

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://php.net/ChangeLog-5.php	Release Notes
http://www.debian.org/security/2016/dsa-3602
http://www.openwall.com/lists/oss-security/2016/05/26/3	Release Notes
http://www.securityfocus.com/bid/92144
https://bugs.php.net/bug.php?id=72135
https://gist.github.com/8ef775c117d84ff15185953990a28576
http://php.net/ChangeLog-5.php	Release Notes
http://www.debian.org/security/2016/dsa-3602
http://www.openwall.com/lists/oss-security/2016/05/26/3	Release Notes
http://www.securityfocus.com/bid/92144
https://bugs.php.net/bug.php?id=72135
https://gist.github.com/8ef775c117d84ff15185953990a28576

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php:5.6.0:alpha1::::::
	cpe:2.3:a:php:php:5.6.0:alpha2::::::
	cpe:2.3:a:php:php:5.6.0:alpha3::::::
	cpe:2.3:a:php:php:5.6.0:alpha4::::::
	cpe:2.3:a:php:php:5.6.0:alpha5::::::
	cpe:2.3:a:php:php:5.6.0:beta1::::::
	cpe:2.3:a:php:php:5.6.0:beta2::::::
	cpe:2.3:a:php:php:5.6.0:beta3::::::
	cpe:2.3:a:php:php:5.6.0:beta4::::::
	cpe:2.3:a:php:php:5.6.1:::::::*
	cpe:2.3:a:php:php:5.6.2:::::::*
	cpe:2.3:a:php:php:5.6.3:::::::*
	cpe:2.3:a:php:php:5.6.4:::::::*
	cpe:2.3:a:php:php:5.6.5:::::::*
	cpe:2.3:a:php:php:5.6.6:::::::*
	cpe:2.3:a:php:php:5.6.7:::::::*
	cpe:2.3:a:php:php:5.6.8:::::::*
	cpe:2.3:a:php:php:5.6.9:::::::*
	cpe:2.3:a:php:php:5.6.10:::::::*
	cpe:2.3:a:php:php:5.6.11:::::::*
	cpe:2.3:a:php:php:5.6.12:::::::*
	cpe:2.3:a:php:php:5.6.13:::::::*
	cpe:2.3:a:php:php:5.6.14:::::::*
	cpe:2.3:a:php:php:5.6.15:::::::*
	cpe:2.3:a:php:php:5.6.16:::::::*
	cpe:2.3:a:php:php:5.6.17:::::::*
	cpe:2.3:a:php:php:5.6.18:::::::*
	cpe:2.3:a:php:php:5.6.19:::::::*
	cpe:2.3:a:php:php:5.6.20:::::::*
	cpe:2.3:a:php:php:5.6.21:::::::*

History

21 Nov 2024, 02:53

Type	Values Removed	Values Added
References	~~() http://php.net/ChangeLog-5.php - Release Notes~~	() http://php.net/ChangeLog-5.php - Release Notes
References	~~() http://www.debian.org/security/2016/dsa-3602 -~~	() http://www.debian.org/security/2016/dsa-3602 -
References	~~() http://www.openwall.com/lists/oss-security/2016/05/26/3 - Release Notes~~	() http://www.openwall.com/lists/oss-security/2016/05/26/3 - Release Notes
References	~~() http://www.securityfocus.com/bid/92144 -~~	() http://www.securityfocus.com/bid/92144 -
References	~~() https://bugs.php.net/bug.php?id=72135 -~~	() https://bugs.php.net/bug.php?id=72135 -
References	~~() https://gist.github.com/8ef775c117d84ff15185953990a28576 -~~	() https://gist.github.com/8ef775c117d84ff15185953990a28576 -

Information

Published : 2016-08-07 10:59

Updated : 2025-04-12 10:46

NVD link : CVE-2016-5095

Mitre link : CVE-2016-5095

CVE.ORG link : CVE-2016-5095

JSON object : View

Products Affected

php

CWE

CWE-190

Integer Overflow or Wraparound

{"id": "CVE-2016-5095", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": true, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 3.9}]}, "published": "2016-08-07T10:59:08.460", "references": [{"url": "http://php.net/ChangeLog-5.php", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "http://www.debian.org/security/2016/dsa-3602", "source": "cve@mitre.org"}, {"url": "http://www.openwall.com/lists/oss-security/2016/05/26/3", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/92144", "source": "cve@mitre.org"}, {"url": "https://bugs.php.net/bug.php?id=72135", "source": "cve@mitre.org"}, {"url": "https://gist.github.com/8ef775c117d84ff15185953990a28576", "source": "cve@mitre.org"}, {"url": "http://php.net/ChangeLog-5.php", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2016/dsa-3602", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/05/26/3", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/92144", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugs.php.net/bug.php?id=72135", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://gist.github.com/8ef775c117d84ff15185953990a28576", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "Integer overflow in the php_escape_html_entities_ex function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from a FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-5094."}, {"lang": "es", "value": "Desbordamiento de entero en la funci\u00f3n php_escape_html_entities_ex en ext/standard/html.c en PHP en versiones anteriores a 5.5.36 y 5.6.x en versiones anteriores a 5.6.22 permite a atacantes remotos provocar una denegaci\u00f3n de servicio o posiblemente tener otro impacto no especificado desencadenando una cadena de salida grande de una llamada FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var. NOTA: esta vulnerabilidad existe debido a una soluci\u00f3n incompleta para CVE-2016-5094."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "664B217B-9913-4A60-ACDA-1C5F5F4861A7", "versionEndIncluding": "5.5.35"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5BF4E8FF-A3EC-43E8-A0C1-FD38AFCB77B8"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "54ADECFC-3C07-43BC-B296-6C25AC7F1C95"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE192054-2FBB-4388-A52A-422E20DEA2D7"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F0195D48-3B42-4AC0-B9C5-436E01C63879"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF0E5D67-ABC1-41A5-94E1-7DD3CDB51D81"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "319E0573-B1AD-40B6-B4BC-8BE67ED3EFDB"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A7C00EB-87B7-4EB7-A4AC-8665D8C78467"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "21BFCF10-786A-4D1E-9C37-50A1EC6056F1"}, {"criteria": "cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "95A6D6C8-5F46-4897-A0B0-778631E8CE6A"}, {"criteria": "cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1F13E2D-A8F7-4B74-8D03-7905C81672C9"}, {"criteria": "cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AE18933A-5FE6-41C7-B1B6-DA3E762C3FB6"}, {"criteria": "cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9AE1289F-03A6-4621-B387-5F5ADAC4AE92"}, {"criteria": "cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "383697F5-D29E-475A-84F3-46B54A928889"}, {"criteria": "cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "786ED182-5D71-4197-9196-12AB5CF05F85"}, {"criteria": "cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF90980D-74AD-44AA-A7C5-A0B294CCE4F8"}, {"criteria": "cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "48D6B69C-8F27-4F4C-B953-67A7F9C2FBA5"}, {"criteria": "cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B53DC0C3-EA19-4465-B65A-BC7CDB10D8BF"}, {"criteria": "cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BEA4DFC1-6C0C-42FB-9F47-E3E1AA9E47E0"}, {"criteria": "cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D904E21A-4B3B-4D96-850C-0C0315F14E6D"}, {"criteria": "cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C7CEF6D7-8966-45E7-BEBB-12055F5898C6"}, {"criteria": "cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "171C1035-414C-4F3A-90F4-1A8ED26E3346"}, {"criteria": "cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "725BBA4E-B3BA-4AFA-A284-E0CDE3EC8FB4"}, {"criteria": "cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F7793408-66A2-4DE7-B5AA-E49E8A2EE043"}, {"criteria": "cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "95840EC0-512D-468D-99B0-17E8CFDD6BE0"}, {"criteria": "cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1078D15-8073-4C04-82C2-3C8111E18B6C"}, {"criteria": "cpe:2.3:a:php:php:5.6.17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1B2E5E0C-8DD7-4CF8-A7E7-28ED0FD8B0C1"}, {"criteria": "cpe:2.3:a:php:php:5.6.18:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E6EE9E4-9D6E-4CCC-B116-6020DA6884BE"}, {"criteria": "cpe:2.3:a:php:php:5.6.19:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F9A23E37-8B94-440A-8014-389AC5389A19"}, {"criteria": "cpe:2.3:a:php:php:5.6.20:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD5E20AF-724B-4DBD-9AED-920375666B6B"}, {"criteria": "cpe:2.3:a:php:php:5.6.21:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD008BBB-10C9-48E2-97B8-6B86B54FD48E"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}

8.6 /10